Searching for a bad tube is pretty easy. I always have a spare set. You just substitute one at a time until you find the bad tube... or eliminate the problem from being a tube. Most companies that supply matched tubes write down their electrical test results on the box or tube, so you can order a single tube matched replacement.
Tube Tester
Just replaced vacuum tubes in my amp. Had a power fault. Replaced the whole right channel because I did not know which tubes actually failed.
Brought back up the idea of getting a tube tester. I have searched for them a few times and have a hard time figuring out their differences and quality.
Any of you have recommendations for me on how to navigate a tube tester purchase?
Thanks in advance